Bearing-fitting tool



BEARING FITTING TOOL. APPLICATION msn mais, 1919.

1,383,454. Patente-d July 921.

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BEARING FITTING TOOL. APLlcATloN FILED Aus.15, 1919.

Patented July 5, 1921;

2 SHEETS-SHEET 2- I able difiiculty isexperienced in the l` UNITED STATES' PATENT OFFICE.

BARTHOLDIA DYMOND, or cHARIioT'rnsvILLE, VIRGINIA:

BEARING-FITTING TOOL.

Apnneation nerd Augustv 15, 1919.

To aZZ whom t may concern Y Be it known that I, BARTHOLDIA DYMOND, a citizenof the United "States, residing at Charlottesville, in the county of Albemarle and State ofV Virginia, have invented ACertain new and useful Improvements-in Bearing-FittingTools, of which the following is a specification. I

This invention relates to a tool, which is particularly,designed for fitting Babbittmetal bearings or linings in vbearings of various types of shafts, and an object of the invention is to provide a tool by means of which the said bearing linings may be worn or shaped to properly fit the shaft which is rotatably mountedtherein, without the necessity of scraping the bearings or vcutting them down to properly lit the shaft.

The pressure method of truing bearing linings is sometimes resorted to, but Considerpresent manner of utilizing this method of truing the bearings owing to the difficulty in prop-v erly engaging` and turning .at the proper intervals the bolts which clamp the bearing caps upon the pillow blocks of the bearing, and an object of this invention is to provide a tool structure which may be Vapplied to the bearing boxes, being connected thereto by means of an openingwinclined for receiving the attaching bolt, which tool includes a pressure member having four time contacts with the bearing cap, and also to associate means with the pressure member, gradually forcing it downwardly, to gradually force the bearing cap into engagement with the body or pillow block of the bearing, exerting pressure upon the pillow or lining yof suitable' soft metal, suchas Babbitt-metal"7 or the like and during which time the shaft is rotating in the bearing, wearing upon thisisoft` metal liner, in proportion vwith the pressure applied thereto, wearing down the liner shaft, after which proper lubrication 'is applied which eliminates to aV material extent further wear upon the bearing liner, during the rotation ofthe shaft therein.

Other objects of the invention will appear and graduall in the following detailed description taken in connection with the accompanying drawings, forming a part of this specification, and in which drawings:

Figure l is a perspective view of the improved tool showing it applied. y o Fig. 2 is a detail viewof the tool showing Specification of Letters Patent.

to properly fit the Patented July 5, 1921. Serial No. 317,775.

through a bearing thevfitting tool applied in motor vehicles.

Fig.. 6 is a view similar to Fig. 5 showing the 'application ofthe tool to still another part of a motor casing, and Y Fig. 7 is a side elevation of a crank shaft such as used upon a motor vehicle, showing it mounted, and the improved bearing fitting tools connected thereto, for fitting the bearing lining of the crank shaft.

Referring more particularly tothe drawings, wherein like characters indicate like and corresponding parts throughout the several views, the crank shaft A of motors, such as a Ford motor used upon motor vehicles, is shown, and the improved bolt fit-ting tool l0 is illustrated in the drawings, as employed for properly tting the bearing linings ll and l5 of the bearing structure l2, of the crank shaft A.V I y Y The bearings l2, include the usual pillow block or supporting body 13, and the cap 14; in which the linings ll and l5, of Babbittmetal or analogous soft metal is placed to form a bearing for the shaft A durin the operation'of the motor.

In truingor fitting the bearing linings il and l5, the soft metal is poured in the bear# ing in the usual manner, and the supporting rods or guides 20 and 2]. of the toolfl() are inserted through the openings 16 Y in the bearing structure 12 which openings normally receive bolts for attachingthe cap 1% to the body 13 of the bearing structure, and these guides 2O and 21 are locks connected to the bearing structure l2 by a transverse key 22 which extents through openings in the guides near their lower ends. A head plate 22 is mounted upon the upper end of the guide rods 2O Vand 2l, and is held thereon by engagement against the shoulders carried by the head plate 22, Vand it has an operating rod 28 extending through the head 29 thereof. VThe feed screw 27 extends through a threaded bore in the head plate or block 22 and its lower end is connected by means of a set screw 30 with a pressure member or block` 31. The pressureblock 31 is providedwith openings 32, through which the guide rods 2O and 21 extend and it is providedwithflat surfaces 33 at each end,

block 31 is'formed downwardlyl by rotation.

of the feed screwV 27, the bearing cap or head 14 may be gradually forced downwardly 'therewith andthepressure will be.V substantially equally distributed over the bearing cap to properly applythe pressure to the soft metal bearing lining so that wear thereon by rotation of the shaft lA will be distributedin such manner that afterthe Vcaplll has beenmoved into engagement with the adjacentsurface ofthe body 113 in the` 30 bearing 12, the shaft Ay will properly fit in the bearing linings 11 and 15 and upon lubricating thereof, a ,true bearing will be provided for the shaft A'and the necessity yof scrapingv orV cutting thebearing lining will .beeliminated, permitting the proper fitting ofthe bearing lining in much less time than 5 inthe usual mannerofscraping and marking i the bearings are properly relined or the lin,

the bearinglining to obtain the proper fit. It isof course understood that during the fitting operation, no lubricatingzoil is.

applied to the bearings, so that the rotation of the shaft Aby any suitable means, and

ythe pressure applied to the soft metal lining through the medium of the feed screw 2T and pressure block 31.will cause the bearing lining to wear away or burn out to form a proper fit between the bearing lining andthefshaft. Y

YIn Fig. 7 of the ings fitted, the motor is inverted and supported in any suitable manner` with the lower portion'bf the crank casingrernoved, so as to permitI access tothe bearings 12 of the crank shaft' and if it is so desired, a

lfitting vtool for each bearing maybe applied,

simultaneously, or only yone fitting tool may lbe employed for` fitting the various bearings.

Power vis applied to the crankshaft A, from any suitable `source through a coupling vindicated QatlOl In the packing of the bear-V jings of Ford engines, the metal ribs as indicated at B in Figs. 5 and 6 of the draw- Vthem, it

drawings, three of the kbearing fitting tools 1() are shown applied to'y a Ford engine o'r motor, which whenV it in no .wise interferes with the efficient operation of the engine. However, in applying the tool 10 to the bearings for fitting is necessary to cut out a vportion of the key 22, as indicated at37 to accommodate this rough rib. In some instances, the ribis relatively deep as shown at Fig. 6 in the drawings, at which time it is necessary to place washers28 about the rodsy 2Q and 21 and against the upper surfaces ofthe key 22 to properly space the key from the bearing body 13. Y

Changes in commodatethe-tool to fit various types-'of bearings, without departing from the vspirit of this invention, but; Y

I claim:

1. In ya bearing fitting tool, the combina-YV tion,of a pair of guide and attaching rods openings extending there-V provided with Y through near their lower ends, a locking key extending through said openings/ai pressure member carried by said Vrods and means for ing said pressure member into andV out of pressing position, and y laterally extending projections formedupon said `pressure mem'- ber for engagement with the upper surface of a bearing cap.Y i g. L Y i p 3. A bearing tting toolcomprising a pair of guiding and attaching rods, the; lower ends of said rodsbeing reduced inl/diameter,Y and provided'v with diametrlcally *extending slots, keys arranged to fit in Vsaid slots, a

heady carried by the upperendsof said rods,

a feedscrew carriedlby said head, means whereby the feed screw may be turned, and a pressuremember carried by the feed screw for engaging'va .bearing cap,jsaid pressurek member having .openings for the reception of said guiderods. n. n

f1. As a new article of manufacture, a bearingpfitting'tool comprising a vframe for attachment with a bearing structure and forming a guideifor the companion portion of the bearing Structure, and a pressure member 7' carried by the .framefor engaging the companion portion of the bearing structure.

5. As a new article ofmanufacture, a bearing Vfitting tool comprising aframe includ- Y ing Va pair of parallel guide and attaching rods for connection with the bearing structure, a pressure member'slidably supported on the rods, the rods forming a guide for the cap of the bearing structure,- andmeansfor moving the pressure member into and out of pressing position with the cap. i

ioo

6. In a device for tting a bearing bushing, the combination with a bearing structure including a pillow block and cap having alined openings therein, of a pair of parallel rods extending through the openings arranged to form a guide for the cap, means for limiting the movement of the rods in one direction in the openings, and a pressure member carried by the rods arranged to engage the cap.

7. In a device for fitting a bearing bushing, the combination with a bearing structure including a pillow block and a cap having alined openings therein, of a pair of spaced parallel rods extended through the openings, means for connecting the rods and arranged for engagement with one surface of the pillow block to limit the movement of the rods in one direction, the rods forming a guide for theJ bearing cap, a pressure member slidably supported by the rods and arranged to engage and coliform to the configuration of the bearing cap, and adjusting means carried by the rods for moving the pressure member into and out of pressing position with the bearing cap.

BARTHOLDIA DYMOND. 

